Congenital malformations of larynx (Q31)

Clinical Information for Congenital malformations of larynx (Q31)

Laryngocele - Congenital anomalous dilitation of the laryngeal saccule that may extend internally into the airway or externally through the thyrohyoid membrane.

Laryngomalacia - A congenital or acquired condition of underdeveloped or degeneration of CARTILAGE in the LARYNX. This results in a floppy laryngeal wall making patency difficult to maintain.

Tracheomalacia - A congenital or acquired condition of underdeveloped or degeneration of CARTILAGE in the TRACHEA. This results in a floppy tracheal wall making patency difficult to maintain. It is characterized by wheezing and difficult breathing.

Instructional Notations

Type 1 Excludes Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

  • congenital laryngeal stridor NOS P28.89